Machine for grinding chilled rolls



N0- 62 |4- Patented Apr. 18, I899.

- A. L. KELLY.

MACHINE FOB GRINDING CHILLED BULLS.

(Application filed Oct. 22, 1898.) (No Model.) 2 Shuts-Sheet I.

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N0. 623,3!4. Patented Apr. l8, I899. A. L. KELLY. MACHINE FUR GRINDINGCHILLED ROLLS.

(Application filed Oct. 22, 1898.) (N0 Model.)

2 Sheets-Sheet 2.

lV/TIVESSES i INVENTOR 7 g I. 7 Allarney UNTTED STATES FFTQE.

PATENT ADAM L. KELLY, OF IVHEELING, IVEST VIRGINIA.

SPECIFICATION forming part of Letters Patent No. 623,314, dated April18, 1899.

Application filed October 22, 1898. Serial No. 694,262. (No model.)

To ctZZ whom it ntay concern:

Be it known that I, ADAM L. KELLY, a resident of lVheeling, in thecounty of Ohio and State of lVest Virginia, have invented certain newand useful Improvements in Machines for Grinding Chilled Rolls; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to an improvement in machines for grinding chilledrolls, the object of the invention being to provide a machine which canbe readily adjusted to grind a roll so as to impart thereto a concave orstraight cylindrical periphery.

A further object is to provide a machine of the above character whichwill be automatic in its operation and which can be readily adjusted toaccommodate different-sized rolls.

A further object is to provide a machine of the above character whichwill be comparatively simple in construction and most effectual when inuse.

lVith these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a front view of my improvedmachine, showing the roll to be ground broken away and the roll-turningmechanism partly in section. Fig. 2 is an end View, and Fig. 3 is a viewin transverse section, of same.

1 represents a base orbed plate having upright parallel front and rearsections 2 and 3 and projecting lugs f at each end to secure same to thefloor. The rear section 3 is higher than the front section 2'and isenlarged at its top, as shown at a, and provided with an inclined rearface on the enlarged portion 4: whereby to form a guide for a slidingcarriage 5, which will be hereinafter more fully described. The rearsection 3 of the bedplate is cutout, as shown at 6, and the upper edgeof the rear plate, below the cut-out portion, is grooved, and the frontsection 2 is grooved in alinement with the groove in the rear sectionfor the reception of .a shaft or axle 7,-which passes through holes oropenings located centrally in depending side sections 8 of a tiltingplatform 9, more fully hereinafter described. Suitable caps 10, havingoil-ducts 11 therein, are disposed over the ends of the shaft or axle 7,and said caps are secured in place by means of suitable bolts 12.

The tilting platform 9 is approximately the length of the bed'plate 1and is provided at its respective ends with lugs 13, havinginternally-screw-threaded holes f or the passage of screw-threaded bolts15, the lower ends of which rest upon or are swiveled in the upper endsof posts 14: on the bed-plate. The upper end of each bolt 15 is providedwith an angular enlargement 16 for the reception of a wrench whereby toturn the bolt and raise one end of the platform and lower the other, andthus tilt the same when it is desired to provide a roll with a concavedperiphery. The upper face of the tilting platform 9 is providedcentrally with a longitudinal groove 17, angular in cross-section, andsaid platform is also provided near each edge with a longitudinaldovetailed groove 18. Adjustable housings 19 for the reception of andsupport for the roll to be ground are disposed at respective ends of thetilting platform and are made concave to approximately conform to thecontour of the roll. Each housing or roll-support is provided on itslower edge with one or more lugs or projections 20, which depend intothe groove 17. Each lug or projection-2O is provided with ascrew-threaded hole for the reception of a screw 21 whereby to adjustsaid housing according to the length- 'of the roll to be ground.

Suitable dovetailed guiding-flanges depend from the housings and enterthe dovetailed grooves 18 in the platform.

The curved faces of the housings are each provided at diametricallyopposite points and in their bottoms with grooves or recesses for thereception of cushion-blocks 24 25, made of any suitable material andadapted to sustain the weight of and properly support the roll withrelation to the grinding means.

Brackets 26, each having an upright member 27 and ahorizontal member 28,connected by a web or brace c, are secured at each end of the uprightrear section 30f the bed-plate 1 by means of bolts 29.

A housing 30, made with a circular opening ICO or hearing 31 near itsupper end and split, as shown at 32,is secured on the horizontal inember 28 of each bracket 26, and said housings 80 are provided with acut-out portion 33 at their lower ends whereby to permit the passage ofa bolt or bolts 34 through the lower edge 35 of the housing intothebracket 26 and secure the housing in place. Each housing 30 isprovided at its front edge with a bracket 36, adapted to receive a block37, having an opening therein for the reception of the non-threadedportion of a screw 38. A shaft or guide 39 is disposed in said openings31 in the housings 30 and is securely clamped in place by means of bolts40, which pass through upwardly-extending ears 41 on each split sectionof the housing 30, as shown.

A sliding carriage 42, having downwardlyextending longitudinal flanges43 disposed one on each side of the guide 4, extends rearward and isprovided on theupper face of its rear end with an upwardly-projectingsection 43, curved on its rear face in the arc of a circle, as shown at44. A semicircular cap 45 is secured to the rear section of the carriage42 and is adapted, together with the section 43 of the carriage, tosurround the shaft 39 and permit the sliding carriage to be movedthereon. A bracket 46 is provided on said carriage for the reception ofa screw-th readed block 47. The block 47 is adapted to receive the screw38, an d as said screw turns in either direction the sliding carriagewill be moved toward one end of the machine. A rod 57 is disposedbetween the brackets 26, and suitable springs 58 are disposed at or neareach end of said rod whereby to engage a downwardly-projecting arm onthe bottom of the sliding carriage when said carriage is moved to eitherextreme position, and hence prevent a su dden shock to the machine,which would be liable to result in injury thereto.

A wedge-shaped groove 48 is provided in the upper face of the carriage42, and a grinder-frame 49 is disposed therein and adapted'to beadjusted by means of screw 50 and block 51, as shown. The grinder-frame49 is made in two hollow sections having extended bearing-faces 52secured together by means of bolts 53, said bearing being recessed orgrooved for the reception of a shaft 54, on which an emery or grindingwheel 55 is centrally located and secured. A pulley 56 is secured ateach end of said shaft outside of the grinder-frame for the reception ofbelts 56 from any convenient source of power. A suitable moisture-supplytube 17 is connected with the top of said grinder-frame 49, whereby tosupply moisture to the grinder or emery-wheel.

Suitable pulleys 6O 61 are disposed in a bracket cl in one end of themachine and are adapted to receive suitable belts (not shown) to turnsame. These pulleys are separated by a clutch 62, which can be operatedto throw either one or the other into engagement with the screw 38, andwhen one of said pulleys is in engagement with the screw whereby to turnthe same in one direction or the other, and thus control the directionof movement of the carriage carrying the grinding mechanism.

The roll a to be ground is provided at its end with grooves 62 for thereception of pins. 63 on one member 63 of a universal coupling 64. Theother member 64 of the universal coupling is secured to one end of ashaft 65, which is circular throughout a greater portion of its length,but is made angular at its end 6, to be secured in and turn with ahollow revolving axle 66, mounted in suitable bearings 67 and havingalarge drivepulley 68 secured thereto.

The operation of my improved machine is as follows: The roll a to beground is placed in the housings 19 and the drive-pulley 68 connectedtherewith by means of the shaft and universal coupling 64. Ifit isdesired to grind the roll concave, it is simply necessary to turn thebolt 15 at one end of the tilting platform 9 and tilt the platform,which will permit the grinder 55 to grind a greater portion from thecenter of the roll than from the ends, and hence concave the roll whenthe grinder is moved from end to end thereof. The grinder-frame 49 isforced forward by means of the screw 50 until the grinder is in contactwith the roll. The machine is then started, and as the roll is turned inone direction the grinder is turned in the opposite direction by meansof the pulleys 56 and belt therefor, and the sliding carriage 42 isdrawn to one end of the slide 4 by means of the screw 38. When thecarriage reaches one end of the slide 4 and the clutch 62 is inengagement with the pulley 61, the clutch will be thrown into engagementwith the pulley 60 and the screw 38 will be turned. in the oppositedirection and the sliding carriage will be carried to the other end ofthe slide 4, when the clutch can be again thrown into engagement withthe pulley 61, and so on throughout the operation of grinding.

Various slight changes might be resorted to in the general form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I would have it understoodthat I do not wish to limit myself to the precise details set forth, butconsider myself at liberty to make such slight changes and alterationsas fairly fall within the spirit and scope of my invention.

Having fully described myinvention, what I claim as new, and desire tosecure by Letters Patent, is

1. A machine for grinding rolls concave, consisting of a platform havinga central pivotal support, means on the platform for supporting the rollto be ground, a grinder disposed so as to be alongside the roll to be Amachine for grinding rolls concave, consisting of abase, atiltingplatform mounted at its center on said'base, set-screws adjacent to therespective ends of the platform cooperating with the base to secure theplatform in an inclined position, means on the tilting platform forsupporting the roll to be ground, a grinder disposed so as tobealongside the roll with its axis at an angle to the axis of the roll,and means for feeding said grinder longitudinally of the roll.

3. In a grinding-machine,the combination with a tilting platform andmeans thereon for revolubly supporting a roll to be ground, of a grinderadapted to travel longitudinally of the roller at one side thereof andmeans for rotating said roller.

4. In a grinding-machine, the combination with a bed-plate, of a tiltingplatform pivotally connected with said bed-plate and adapted to supporta roll to be ground, a sliding carriage mounted on said bed-plate at oneside of the platform a grinder-frame adjustably mounted on saidcarriage, a grinder in said grinder-frame and means for rotating saidgrin der and means for rotating the roll to be ground.

In a grinding-machine, the combination with a bed-plate having uprightsides, of a tilting platform pivotallysupported between said sides andcarrying housings for supporting a roll to be ground, a sliding carriagedisposed on one of said sides of the bed-plate and a grinder adjustablymounted on said carriage and adapted to engage the roll to be ground andmeans for simultaneously rotating the roll and grinder and feeding thecarriage longitudinally of the roll.

0. In a grinding-machine, the combination with a bed-plate havingupright front and rear sections, of a tilting platform pivotally mountedbetween said front and rear sections, means on said platform forsupporting a roll to be ground, a sliding carriage disposed on the rearupright section of the bed-plate, a grinder-frame adjustably mounted insaid carriage, a grinder in said frame, pulleys connected with saidgrinder and means for supplying moisture to said grinder.

7. In a grinding-machine, the combination with a bed-plate havingupright front and rear sections, of a tilting platform pivotally mountedin said bed-plate, a carriage mounted on said rear section of thebed-plate, a screw adapted to move said carriage and means for operatingsaid screw.

8. In a grinding-machine, the combination with a-bed-plate, of a tiltingplatform pivotally mounted in said bed-plate, a carriage also mounted insaid bed-plate, a grinder-frame mounted in said carriage, a grinder insaid frame and cushions for preventing a shock when the carriage reachesthe ends of its movement.

9. In a grinding-machine, the combination with a bed-plate and atiltingplatform mounted on said bed-plate and adapted to support a roll to beground mounted thereon, of brackets secured to said bed-plate, housingssupported by said brackets, a shaft secured in said housings and acarriage disposed on said bed-plate and adapted to move on said shaftand a grinder mounted on the carriage.

10. In a grinding-machine, the combination with means whereby to supporta roll to be ground and means for grinding said roll, of a drive-pulley,a hollow axle for said pulley having an internally-angular portion, ashaft having an angular portion to enter the angular portion of saidhollow axle and a universal coupling connected with said shaft andadapted to be connected with the roller to be ground.

11. The combination in a cold-roll-grindin g machine of a tiltingplatform, housings on said platform adapted to support a roll, adrivepulley adapted to turn the roll to be ground and means on saidpulley whereby to adjustably connect same with the roll to be ground.

12. The combination with a cold-roll-grinding machine, of a platform,housings on said platform adapted to support a roll to be ground,cushion-blocks disposed in recesses in the housings and adapted to bearagainst the roll to be ground and means for turning said roll.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ADAM L. KELLY.

IVitnesses:

T. M. GARVIN, ALEXANDER HIRTH.

